Quarterly report pursuant to Section 13 or 15(d)

Segment and Geographical Data (Details)

v2.4.0.6
Segment and Geographical Data (Details) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2013
segment
Mar. 31, 2012
Segment Reporting Information [Line Items]        
Number of Reportable Segments     2  
Revenues $ 1,937 $ 4,805 $ 5,346 $ 11,743
Revenue, Net 1,937 4,805 5,346 11,743
Consolidated net income (loss) (4,332) (4,590) (16,928) (8,207)
Nautilus Poplar, LLC (NP)
        
Segment Reporting Information [Line Items]        
Revenues 1,706 1,692 4,608 4,574
Consolidated net income (loss) 333 (894) (133) 2,862
Magellan Petroleum Australia Limited (MPAL)
        
Segment Reporting Information [Line Items]        
Revenues 231 3,107 738 7,163
Consolidated net income (loss) (3,396) (1,039) (10,913) (4,348)
Corporate
        
Segment Reporting Information [Line Items]        
Revenues 0 6 0 6
Consolidated net income (loss) (1,300) (2,652) (5,736) (6,711)
Inter-segment Elimination
        
Segment Reporting Information [Line Items]        
Revenues 0 0 0 0
Consolidated net income (loss) $ 31 $ (5) $ (146) $ (10)